U need something like these...
180° Blue Aeroponic Microjet Sprayers - Plantlighting Hydroponics
Just don't use spinners, they get stopped by roots and are useless. They are good for rooting clones, that's it...
EDIT... Their are also some red ones that are real popoular, I actually use them but I buy them locally and I'm not going to look around all day onthe net for them... With some searching tho I bet u could find them. They are very similar to the ones I linked u to.